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  Control method of display apparatusUSPTO Application #: 20070247400Title: Control method of display apparatus Abstract: A control method of a display apparatus. The display apparatus includes a light source module for generating at least one first light source and a second light source, and a display plane for displaying at least one image frame, which has a first sub-frame and a second sub-frame. The control method includes the steps of displaying an image of the first sub-frame on the display plane during a first time, and displaying an image of the second sub-frame on the display plane with a first distance from the image of the first sub-frame during a second time. (end of abstract)
Agent: Birch Stewart Kolasch & Birch - Falls Church, VA, US Inventor: Feng-Li Lin USPTO Applicaton #: 20070247400 - Class: 345 83 (USPTO) The Patent Description & Claims data below is from USPTO Patent Application 20070247400. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATIONS [0001]This Non-provisional application claims priority under 35 U.S.C. .sctn.119(a) on Patent Application No(s). 095113999 filed in Taiwan, Republic of China on Apr. 19, 2006, the entire contents of which are hereby incorporated by reference. BACKGROUND OF THE INVENTION [0002]1. Field of Invention [0003]The invention relates to a control method of a display apparatus, and, in particular, to a control method applied to a display apparatus for displaying an image frame. [0004]2. Related Art [0005]Currently, the main display apparatuses may be classified into a self-emissive display apparatus and a non-self-emissive display apparatus. The self-emissive display apparatus includes, for example, a cathode ray tube (CRT) display and a plasma display panel (PDP), while the non-self-emissive display apparatus includes, for example, a liquid crystal display (LCD) and a digital light processing (DLP) projector. [0006]The non-self-emissive display apparatus needs a light source module for generating at least one light source, and displays a color on a display plane according to one light source in conjunction with a pixel array. Typically, the color may be displayed using a color filter to split the light source into red, green and blue light beams, which may be displayed on the display plane in an overlapped manner. Alternatively, the red, green and blue light beams may be projected onto the display plane so that the color may be displayed on the display plane. [0007]The above-mentioned displaying method can achieve the object of color display only in conjunction with a typical liquid crystal. Generally speaking, the response time of this liquid crystal is about 10 ms to 15 ms. Recently, the manufacturers have constructively spent a lot of resources to improve the response speed of the liquid crystal, and thus developed the optically compensated bend (OCB) liquid crystal technology having the shortened response time shorter than 10 ms. [0008]Based on the increase of the response speed of the liquid crystal, the manufacturer also develops a color circulating display using a circulating light source according to the property of the OCB liquid crystal, and the color may be displayed on the display plane according to the phenomenon of the persistence of vision of the human eyes. In general, the image is composed of three primary-color light sources including red, green and blue light sources, and the frame may be displayed on the display plane in conjunction with the gray-scale adjustment of the liquid crystal. The so-called color circulating display technology is to divide one image frame data zone into the image frame data corresponding to the red light source, the green light source and the blue light source, and the image frame data may be displayed on the display plane according to the phenomenon of the persistence of vision of the human eyes. [0009]If the color circulating display technology mentioned hereinabove has the light emitting diode as the backlight source, the color filter may be eliminated from the display apparatus so that the cost can be effectively reduced. However, when the color circulating display technology is utilized and when an object is moving on a frame of a display plane of the display apparatus, the color split phenomenon often occurs on the edge of the moving object because the human eyes has predicted the frame motion and thus tracked the image. That is, the red, green and blue colors may be observed on the edge of the moving object so that the utility of the color circulating technology is restricted. [0010]As mentioned hereinabove, the user's demand on the image is getting higher and higher. So, it is an important subject of the invention to provide a control method capable of effectively suppressing the color split phenomenon generated by the display apparatus using the color circulating display technology. SUMMARY OF THE INVENTION [0011]In view of the foregoing, the invention is to provide a control method of a display apparatus capable of preventing a color split phenomenon. [0012]To achieve the above, the invention discloses a control method of a display apparatus. The display apparatus includes a light source module for generating at least one first light source and a second light source, and a display plane for displaying at least one image frame having a first sub-frame and a second sub-frame. The control method includes the steps of: displaying an image of the first sub-frame on the display plane during a first time; and displaying an image of the second sub-frame on the display plane with a first distance from the image of the first sub-frame during a second time. [0013]As mentioned hereinabove, the control method of the display apparatus according to the invention divides the image frame into the first sub-frame and the second sub-frame, which are sequentially displayed on the display plane with a period of time and a distance between images thereof. The human eyes having the phenomenon of the persistence of vision may watch the image frame. Consequently, it is possible to prevent the human eyes from tracking the moving image and thus to prevent the color split phenomenon from happening. BRIEF DESCRIPTION OF THE DRAWINGS [0014]The invention will become more fully understood from the detailed description given herein below illustration only, and thus is not limitative of the present invention, and wherein: [0015]FIG. 1 is a schematic illustration showing a control method of a display apparatus according to a preferred embodiment of the invention, wherein a moving object moves by a distance in a first image frame and a second image frame; [0016]FIG. 2 is a flow chart showing the control method of the display apparatus according to the preferred embodiment of the invention; and [0017]FIGS. 3A to 3D are schematic illustrations showing the moving object in a first sub-frame, a second sub-frame and a third sub-frame, which are sequentially displayed on a display plane according to the flow chart of FIG. 2. DETAILED DESCRIPTION OF THE INVENTION [0018]The present invention will be apparent from the following detailed description, which proceeds with reference to the accompanying drawings, wherein the same references relate to the same elements. [0019]First, it is to be explained that the control method of the display apparatus according to the preferred embodiment of the invention is applied to a light source module in conjunction with a display plane 11. In this illustrated embodiment, the light source module generates a first light source, a second light source and a third light source (not shown). The display plane 11 sequentially displays a first image frame F1 and a second image frame F2, wherein each of the first image frame F1 and the second image frame F2 has a moving object O1 moving by a distance D (see FIG. 1) on the display plane 11. Continue reading... Full patent description for Control method of display apparatus Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Control method of display apparatus patent application. Patent Applications in related categories: 20080238839 - Backlight assembly, display device having the same and method of driving the same - A backlight assembly includes a plurality of line light source sections and a light source driving section. The line light source sections include a plurality of point light sources disposed along a first direction, and are disposed along a second direction substantially perpendicular to the first direction. The light source ... 20080238838 - Digital color controller - A digital color controller for illumination of dashboards and instrument panels is provided. In one embodiment, a digital color controller comprises a single control mechanism for varying the color of illumination of RGB LEDs. 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